Mercurial > cpython-lru_cache-weakref

annotate Tools/scripts/md5sum.py @ 25838:8540887bcec6 2.2

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Backport of 2.183: Fix memory leak in add_subclass() found by NealN with valgrind.
author Guido van Rossum <guido@python.org>
date Fri, 18 Oct 2002 13:42:21 +0000
parents 368e8081e73c
children a5e99e7e7ff0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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6991ddafe382 This is a trivial command line utility to print MD5 checksums.
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1 #! /usr/bin/env python
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2
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3 """Python utility to print MD5 checksums of argument files.
6991ddafe382 This is a trivial command line utility to print MD5 checksums.
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4
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368e8081e73c backport akuchling's patch:
Anthony Baxter <anthonybaxter@gmail.com>
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5 Works with Python 2.1 and later.
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6991ddafe382 This is a trivial command line utility to print MD5 checksums.
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6 """
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7
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8 import sys, md5
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9
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10 BLOCKSIZE = 1024*1024
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11
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12 def main():
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13 args = sys.argv[1:]
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14 if not args:
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15 sys.stderr.write("usage: %s file ...\n" % sys.argv[0])
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16 sys.exit(2)
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17 for file in sys.argv[1:]:
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18 f = open(file, "rb")
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19 sum = md5.new()
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20 while 1:
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21 block = f.read(BLOCKSIZE)
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22 if not block:
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23 break
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24 sum.update(block)
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25 f.close()
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Anthony Baxter <anthonybaxter@gmail.com>
parents: 18218
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26 print sum.hexdigest(), file
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27
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28 if __name__ == "__main__":
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29 main()